diff --git a/dev/bots/prepare_package.dart b/dev/bots/prepare_package.dart
index 468a91a954..5def6897ce 100644
--- a/dev/bots/prepare_package.dart
+++ b/dev/bots/prepare_package.dart
@@ -525,7 +525,7 @@ class ArchiveCreator {
 
   Future<String> _runGit(List<String> args, {Directory? workingDirectory}) {
     return _processRunner.runProcess(
-      <String>['git', ...args],
+      <String>['git', '--git-dir', '.git', ...args],
       workingDirectory: workingDirectory ?? flutterRoot,
     );
   }
diff --git a/packages/flutter_tools/lib/src/commands/downgrade.dart b/packages/flutter_tools/lib/src/commands/downgrade.dart
index bb0eb428a9..4a2a48bb5e 100644
--- a/packages/flutter_tools/lib/src/commands/downgrade.dart
+++ b/packages/flutter_tools/lib/src/commands/downgrade.dart
@@ -118,7 +118,7 @@ class DowngradeCommand extends FlutterCommand {
     // Detect unknown versions.
     final ProcessUtils processUtils = _processUtils!;
     final RunResult parseResult = await processUtils.run(<String>[
-      'git', 'describe', '--tags', lastFlutterVersion,
+      'git', '--git-dir', '.git', 'describe', '--tags', lastFlutterVersion,
     ], workingDirectory: workingDirectory);
     if (parseResult.exitCode != 0) {
       throwToolExit('Failed to parse version for downgrade:\n${parseResult.stderr}');
@@ -191,7 +191,7 @@ class DowngradeCommand extends FlutterCommand {
         continue;
       }
       final RunResult parseResult = await _processUtils!.run(<String>[
-        'git', 'describe', '--tags', sha,
+        'git', '--git-dir', '.git', 'describe', '--tags', sha,
       ], workingDirectory: workingDirectory);
       if (parseResult.exitCode == 0) {
         buffer.writeln('Channel "${getNameForChannel(channel)}" was previously on: ${parseResult.stdout}.');
diff --git a/packages/flutter_tools/lib/src/version.dart b/packages/flutter_tools/lib/src/version.dart
index f2068a6ca2..99b161689e 100644
--- a/packages/flutter_tools/lib/src/version.dart
+++ b/packages/flutter_tools/lib/src/version.dart
@@ -106,7 +106,7 @@ class FlutterVersion {
     String? channel = _channel;
     if (channel == null) {
       final String gitChannel = _runGit(
-        'git rev-parse --abbrev-ref --symbolic @{u}',
+        'git --git-dir .git rev-parse --abbrev-ref --symbolic @{u}',
         globals.processUtils,
         _workingDirectory,
       );
@@ -114,7 +114,7 @@ class FlutterVersion {
       if (slash != -1) {
         final String remote = gitChannel.substring(0, slash);
         _repositoryUrl = _runGit(
-          'git ls-remote --get-url $remote',
+          'git --git-dir .git ls-remote --get-url $remote',
           globals.processUtils,
           _workingDirectory,
         );
@@ -326,7 +326,7 @@ class FlutterVersion {
   /// the branch name will be returned as `'[user-branch]'`.
   String getBranchName({ bool redactUnknownBranches = false }) {
     _branch ??= () {
-      final String branch = _runGit('git rev-parse --abbrev-ref HEAD', globals.processUtils);
+      final String branch = _runGit('git --git-dir .git rev-parse --abbrev-ref HEAD', globals.processUtils);
       return branch == 'HEAD' ? channel : branch;
     }();
     if (redactUnknownBranches || _branch!.isEmpty) {
@@ -359,7 +359,7 @@ class FlutterVersion {
   /// wrapper that does that.
   @visibleForTesting
   static List<String> gitLog(List<String> args) {
-    return <String>['git', '-c', 'log.showSignature=false', 'log'] + args;
+    return <String>['git', '-c', 'log.showSignature=false', '--git-dir', '.git', 'log'] + args;
   }
 
   /// Gets the release date of the latest available Flutter version.
@@ -730,7 +730,7 @@ class GitTagVersion {
 
   static GitTagVersion determine(ProcessUtils processUtils, {String? workingDirectory, bool fetchTags = false, String gitRef = 'HEAD'}) {
     if (fetchTags) {
-      final String channel = _runGit('git rev-parse --abbrev-ref HEAD', processUtils, workingDirectory);
+      final String channel = _runGit('git --git-dir .git rev-parse --abbrev-ref HEAD', processUtils, workingDirectory);
       if (channel == 'dev' || channel == 'beta' || channel == 'stable') {
         globals.printTrace('Skipping request to fetchTags - on well known channel $channel.');
       } else {
@@ -739,7 +739,7 @@ class GitTagVersion {
     }
     // find all tags attached to the given [gitRef]
     final List<String> tags = _runGit(
-      'git tag --points-at $gitRef', processUtils, workingDirectory).trim().split('\n');
+      'git --git-dir .git tag --points-at $gitRef', processUtils, workingDirectory).trim().split('\n');
 
     // Check first for a stable tag
     final RegExp stableTagPattern = RegExp(r'^\d+\.\d+\.\d+$');
@@ -760,7 +760,7 @@ class GitTagVersion {
     // recent tag and number of commits past.
     return parse(
       _runGit(
-        'git describe --match *.*.* --long --tags $gitRef',
+        'git --git-dir .git describe --match *.*.* --long --tags $gitRef',
         processUtils,
         workingDirectory,
       )